Upseat Boost Toddler Booster Seat
- 18 months to 5 years age range
- 50 lb weight capacity
- Foam construction, 3.1 lb
- 13 x 12 x 5 inches (D x W x H)
- Portable
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A light foam seat listed as a highchair, meant for children past the first year. It is made for carrying, so confirm the strap and surface details with the seller.
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ASIN: B08VV7TSY9Model: 400Category: Highchairs
Overview
Carrying a foam seat from place to place is the point of the Upseat 400, which the listing marks as portable. It is filed under highchairs and gives an age range running from toddler age into early childhood.
The reason to look at it is the low weight and the compact stated size, which suit a family on the move. The limit is the empty listing: no straps, no cover, no surface compatibility and no cleaning information are given.
Who it's for
Households with a toddler past the first year who want a seat that travels easily will find the age range and weight limit clear. Parents of younger babies, or anyone needing an all-in-one tray and harness setup, need a full highchair.
Pros and cons
- Light foam body
- Compact stated size
- Covers toddler into early childhood
- No harness details
- Foam care not described
- Surface fit not stated
- Not for babies
Performance notes
A foam seat works by raising the child to table height, so stability depends on the surface and the child staying seated. The stated weight capacity sets the upper limit, and the foam material is light but gives no description of grip or washability.
Specifications
| Brand | Upseat |
|---|---|
| Model | 400 |
| Dimensions & fit | |
| Weight Capacity | 50 poundshigher than 59% of 47 highchairs |
| Item dimensions | 13 x 12 x 5 inches |
| Item weight | 3.1 pounds |
| Capacity & performance | |
| Age Range | 18 months to 5 years |
| Construction & materials | |
| Material | Foam |
| Other details | |
| Portable | Yes |
Closest rivals on specs
CoComelon Booster Seat with Tray- Item Weight 3.1 vs 3.9 pounds (-21%)
Boon GRUB Adjustable Baby High Chair- Item Weight 3.1 vs 1 pounds (+210%)
Peg Perego Rialto Booster Seat- Item Weight 3.1 vs 6.6 pounds (-53%)
- Weight Capacity 50 vs 45 pounds (+11%)
Frequently asked questions
How much weight can the Upseat 400 hold?
The listing gives a weight capacity of 50 pounds.
Is the Upseat 400 portable?
Yes. The listing marks portable as Yes and gives the item weight as 3.1 pounds.